20808768477

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{7232801}}^1$

素因数の和:7232948

約数の個数: 16

約数和(自身を含む): 31940053632

約数和(自身を除く): 11131285155

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 7232801, 21698403, 50629607, 151888821, 990893737, 2972681211, 6936256159, 20808768477]

約数ペア:

[(1, 20808768477), (3, 6936256159), (7, 2972681211), (21, 990893737), (137, 151888821), (411, 50629607), (959, 21698403), (2877, 7232801)]